JPS61211491A - Rod receiver of crawler drill - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a lot 0 receiving device in a lot changing device for a crawler drill used for drilling operations and the like.

In a conventional crawler drill that drills into the ground using a drilling device mounted on a vehicle, rods must be added sequentially as the drilling progresses. For this purpose, a lot changing device is provided.

Problems to be Solved by the Invention In the conventional system, a power system was required to carry the rod to the exchange position and a power system for moving it to the rod loading/unloading entrance in the rod changing device. However, this method requires a device to open and close the gate at the loading/unloading entrance of the lot, which results in a complicated mechanism, increases the weight of the device, and increases costs.

Means for solving the problem (a) A single hydraulic cylinder is used to carry the rod in and out of the rod changing device to the changing position.

(b) A lot 9 receiving device 6 is provided to reliably add and collect rods.

(c) K so that it can operate reliably in any working position.

Provide a ratchet mechanism, a rotary holder, etc. with a strut.

Function (a) The rod receiving device and rod holder allow rods to be added and recovered easily and reliably in any working position.

(b) Even when the ratchet 68 turns the guide cell 2 upward, the lot 9 receiving device 6 does not retreat.

(c) When the guide cell 2 is facing upward, the rod receiving device 6
Even if the ratchet slide moves backward, the weight of the rod receiving device 6 can be received by the stopper 70 without moving backward.

Embodiments In FIGS. 1 to 12, reference numeral 1 indicates a guide cell support that is mounted on a vehicle so that it can be raised and lowered, and 2 is mounted so that it can slide on the guide cell support 1 depending on the distance between the drilling point and the vehicle body. is an idle cell; 3 is a guide 9; a bird 7 that moves back and forth on the cell 2 and applies impact and rotation to the lot; 4 is a centralizer attached to the tip of the guide cell 2 to support and guide the lot; 5 is a lot changing device; 6 is a rod receiving device.

7 is a chain for moving the drifter 3 forward and backward. 8 is a sprocket, 9 is a lot 0.1o is a sleeve.

The rod exchanging device 5 consists of a magazine device 11 and an indexing device 12, and has a structure capable of accommodating a plurality of rods, and performs lot addition and collection.

The swing arms 13 and 41 are fixed to shafts 37 and 36, and the shaft 36 is rotatably attached to brackets 31 and 54 attached to the guide cell 2.

The magazine device 11 includes a magazine plate 17 and a clamp 1.
5. The lock cylinder 24, hydraulic cylinder 32, etc. can be moved to the rod exchange position by extending the hydraulic cylinder 32, and by extending the lock cylinder 24, the shift lamp 15 can be moved The sleeve IOA with the rod 9A screwed therebetween can be inserted.

The indexing device 12 is composed of a plate 43 having the same shape as the magazine plate 17, a cam device 45, etc., and the magazine plate 17 is used when adding lots and collecting lots.
7 and plate 43 are rotated by one pitch to accurately position each phase.

The rod receiving device 6 consists of the following members: 61 is 7 pieces;
62 is a rod support), and the hook 6 trod support 62 is connected by a bar 8.

The head is made of pawl and is rotatably attached to the seven hooks 61 via pins 65. 66 is a screw) spring, pin 6
5, one end is attached to the plate 67 of the hook 61, and the other end is crimped to the lower end of the plate 61α to apply a downward force to the pawl 64. 68 is a ratchet fixed to the guide cell 2, 69 is a guide for the hook 61 attached to the guide cell 2, and 70 is a guide cell 2
It is a stopper fixed to.

The plate 67 has locking portions 67α and 67h.

In the lot support 62, 71 is a movable bracket guided by the guide cell 2, and 72 is a bracket 71.
This support is rotatably mounted on a shaft 73.

A screw spring 74 is attached to the shaft 73 and press-fitted to the upper surface of the bracket 71 and the back surface of the bracket 72 to bias the support 72 forward.

75 is a plate fixed to the front surface of the support 72, and 76 is a roller attached to the plate 75. 77 is a plate fixed to the side surface of the support 72, and 78 is a rod 9 holder rotatably attached to the plate 79 fixed to the plate 77 via a pin 80. The support 72 and the rod holder 78 have recesses 72α and 78 for receiving the rod 9A.
Set α. 81 is attached to plate 79 and lot 9
This is a leaf spring that urges the holder 78 downward.

82 is an inclined plate fixed to the guide cell 2.

83 is the only long pin among the pins used to connect the chain 7, and the locking portions 67α and 67b of the 7 hook 61
can be engaged with.

The addition of rods is carried out as follows: (When adding a new lot 9A to the rod 9 that has already been propelled underground) l) When the rod 9 that is being propelled reaches the predetermined position, move the drifter 3 to the guide cell 2. retreat along.

At this time, the long pin 83 incorporated in the chain 7 moves rearward due to the drive of the chain 7, hits the pawl 64, and pushes it up, so that its pawl is released from the ratchet 68. (nth
Figure) The long pin 83 pushes the locking portion 67b of the pin 61, and the rod receiving device 6 moves backward together with the dowel 3. (FIG. 11→FIG. 1) As the rod receiving device 6 retreats, the rod 276 of the rod support 62 is gradually lifted upward along the inclined plate 82, and eventually reverses and the rod 276 of the rod support 62 is moved upward.
7 will be able to receive the lot. (Figure n/9
(Figure) 2) Extend the hydraulic cylinder blade of the rod exchange device 5 and tilt the swing arms 13 and 41 forward.

3) Extend the lock cylinder and attach the sleeve IOA screwed with lot 9A to the lock cylinder and clamp 1.
5 and grip it. (FIGS. 4 and 5) At this time, the lot 9A to be added coincides with the center line of the perforation.

4) Move the drifter 3 forward and screw it into the sleeve IOA while rotating to connect it.

5) After retracting the lock cylinder to release the lock, retract the hydraulic cylinder blade to release the swing arm 13.
Return the company to its original position. At this time, the sleeve 10A (and rod 9A) has a carrying capacity of 13t for the swing arm 13.
The L and swing arm 41 are removed from the loading/unloading port.

The sleeve IOA is fixed by the rotor 3 and the other is received by the rod support 62.

5) When the -1 swing arm 13 returns to its original position, the sleeve IOA is fixed by the drifter 3, so the magazine plate 17 automatically rotates one pitch, and the cam device 45 performs accurate positioning. be exposed.

6) Move the drifter 3 forward to remove lot "9A" and sleeve 1.
0 and screw together.

7) For the advancement of the drifter 3 during drilling work, the chain 7
The rod receiving device 6 moves forward by pushing the locking portion 67g of the long pin or hook 61 incorporated in the rod. As the rod receiving device 6 advances, the roller 76 of the lot 0 support 62
falls down and rotates along the inclined surface of the inclined plate 82, and is removed from the rod 9A.

8) After the long pin passes through the sprocket 8 and is rolled up downward, the rod receiving device 6 is pushed by the drifter 3.

By repeating the above operations, the rods in the lot changing device 5 are sequentially supplied to proceed with the drilling work.

The rod V is recovered as follows: (When the rod is recovered after the drilling operation is completed) 1) When the drilling operation is completed, the drifter 3 is moved backward.

At this time, the claw portion of the pawl 64 is released from the ratchet 68 by being pushed up by the long pin 83. (Figure n) Long bottle 83
pushes the locking portion 67h of the hook 61, and the rod receiving device 6 moves backward together with the drifter 3.

The rotary port 62 will eventually reverse to receive the rod. (
11 and 1) 2) Unscrew the lot 9A and the sleeve 10.

3) Extend the hydraulic cylinder 32 of the lot changing device 5 and tilt the swing arms 13 and 41 forward. At this time, the sleeve 10A (and rod 9A)
It enters through the loading/unloading entrance 13α of the swing arm 41 and the loading/unloading entrance of the swing arm 41.

3)-1 When the swing arm 13 falls forward, the sleeve IOA is fixed by the drifter 3, so the magazine plate 17 automatically rotates l pitch, and accurate positioning is performed by the cam device 45. .

4) Extend the lock cylinder 24 and grip the sleeve 10 with the clamp 15.

5) Unscrew the sleeve IOA and drifter 3.

6) Retract the hydraulic cylinder 32 and swing arm 13
return to its original position.

By repeating the above operations, the rods are sequentially recovered into the lot changing device 5.

Function of the rod support 62: When adding or recovering a rod, it moves backward to receive the rod, and when drilling a hole, it moves forward to lengthen the forward distance of the drifter 3.

Action between the locking parts 67α and 67b of the seven hooks 61: After propelling the rod into the ground, the inside of the hole is cleaned.

This is an operation in which the drifter 3, which has been unscrewed from the sleeve 10, is moved back and forth several times to send air into the hole. It is undesirable for the rod support device 6 to move back and forth and the rod support 62 to rise and roll each time the drifter 3 moves forward and backward, so the locking portions 67α and 67b are spaced apart, and the long bottle wings are connected to the locking portion 67α. - Prevents it from operating on 67b.

Effect of ratchet brocade: The engagement of the pawl 64 with the ratchet 68 prevents the rod receiving device 6 from retreating when the guide cell 2 is turned upward.

The long pin 83 of the chain 7 for moving the drifter 3 comes into contact with the pawl 64 and due to the pressing force of the long pin 83, the claw portion is released from the engagement with the ratchet 68 and the rod receiving device 6 is moved backward. It becomes possible to move.

To eliminate the inconvenience of receiving the entire weight of a rod receiving device 6 with a long pin when the guide cell 2 is oriented upward due to the action of a stopper 700.

Effects of the invention (a) By providing the rod receiving device 6, the work at the time of adding and collecting the lot 9 is ensured, and by providing the i-tsur holder 78, it is possible to hold the Chiron r and perform all kinds of work. Lots can be exchanged in any position.

(b) During drilling, the lot 0 support 62 moves forward and falls over, shortening its front and rear lengths, making it possible to lengthen the forward distance of the 7-piece 61.
Since the locking portions 61α and 61j are provided at a distance from each other, the rod support 62 does not move when the trolley is moved back and forth many times to clean the inside of the hole.

b) Even when the guide cell 2 is turned upward by the ratchet 68, the rod receiving device 6 does not retreat.

(e) When the guide cell 2 is facing upward, even if the rod receiving device 6 moves backwards from the ratchet brocade, the weight of the rod receiving device 6 can be received by the stopper 70 without moving backwards. .

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing an embodiment of the lot 9 receiving device of the crawler drill of the present invention, FIG. 2 is a side view showing the front part of the guide cell of the crawler drill, and FIG. 3 is a sectional view showing the rod exchange device. Figure 4 is a cross-sectional view of mV-IV in Figure 3, Figure 5 is a cross-sectional view of V-■ in Figure 3, Figure 6 is a cross-sectional view of VI-Vl in Figure 1, and Figure 7 is a cross-sectional view of Figure 8. ■-■ sectional view, Fig. 8 is a cross-sectional view of Fig. 6, Fig. 9 is a side view showing the rod holder, Fig. 10 is an X--
The X sectional view, FIG. 11, and FIG. n are operation explanatory views. 2...Guide cell 5...Rod exchange device 6
... Rod receiving device 61 ... Hook brocade ... Ratchet 78 ... Rod holder 82 ... Inclined plate wing ... Long pin Sub-agent Patent attorney Okamoto
Heavy: 2 people outside the text

Claims (1)

[Claims] It consists of a pawl that is biased downward to the hook, a ratchet that is fixed to the guide cell, and a long pin of the chain that operates on the pawl to release the engagement with the ratchet, so that even if the guide cell is turned upward, the rod remains A rod receiving device for a crawler drill, characterized in that the receiving device is prevented from falling.